package com.jc.common.util;

public class CheckNullUtils {

    public static Boolean isNull(String str) {

        Boolean flag = false;


        if ("null".equals(str)) {
            flag = true;
        }
        if (str == null) {
            flag = true;
        }
        if ("".equals(str)) {
            flag = true;
        }

        return flag;

    }


}
